Turbine Shaft Fluid Seal Ring Replacement

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Replacing Turbine Shaft Fluid Seal Ring

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedures Inspect the turbine shaft fluid passages and splines. Clean any plugged passages.
1	Turbine Shaft Fluid Seal Ring (Qty: 3) NOTE: Do not use old seal rings. Install NEW seal rings. Reusing old seal rings may cause internal transmission leaks and transmission damage. NOTE: Size the fluid seal rings for at least 5 minutes after installation to obtain proper seal ring size. Failure to do so may cause internal transmission leaks and transmission damage. Tip: Adjust the turn screw on DT 47768-1 and install the bottom seal ring first. See Special Tools . Special Tools DT 47768-1 Seal Protector. See Special Tools . DT 47768-2 Seal Pusher. See Special Tools . DT 47768-3 Seal Sizer. See Special Tools .

Callout

Component Name

Preliminary Procedures

Inspect the turbine shaft fluid passages and splines.
Clean any plugged passages.

Turbine Shaft Fluid Seal Ring (Qty: 3)

NOTE: Do not use old seal rings. Install NEW seal rings. Reusing old seal rings may cause internal transmission leaks and transmission damage.

NOTE: Size the fluid seal rings for at least 5 minutes after installation to obtain proper seal ring size. Failure to do so may cause internal transmission leaks and transmission damage.

Tip: Adjust the turn screw on DT 47768-1 and install the bottom seal ring first. See Special Tools .

Special Tools

DT 47768-1 Seal Protector. See Special Tools .
DT 47768-2 Seal Pusher. See Special Tools .
DT 47768-3 Seal Sizer. See Special Tools .